/* 
 * Copyright (c) 2008 Knightsoft
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/
package com.knightsoft.util;

 /**
 * Automatically create a Generator, given a class
 * with a default (no-arg) constructor.
 * 
 * @version 1.0 11/08/08
 * @author 	Michael Shih
 */
public class BasicGenerator<T> implements Generator<T> {
	private Class<T> type;

	public BasicGenerator(Class<T> type) {
		this.type = type;
	}

	public T next() {
		try {
			// Assumes type is a public class:
			return type.newInstance();
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

	/** 
	 * Produce a Default generator given a type token
	 */
	public static <T> Generator<T> create(Class<T> type) {
		return new BasicGenerator<T>(type);
	}
}